Ecosystems and Energy Flow

In an ecosystem, snakes feed on frogs, which feed on mosquitoes. Use of a bug spray has decreased the number of mosquitoes. What will probably happen to the number of frogs and snakes?

• Frogs will increase, snakes will increase

• Frogs will increase, snakes will decrease

• Frogs will decrease, snakes will increase

• Frogs will decrease, snakes will decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of these shows a possible food chain for an ecosystem?

• shark--> fish --> plankton -->sun

• sun --> plankton --> fish --> shark

• plankton --> sun --> fish --> shark

• plankton --> fish --> shark --> sun

Tags

NGSS.5-LS2-1

If the snake population decreased, which group would increase in number?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

• Decomposers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A raccoon eats plants and animals. It is an example of a(n)

• omnivore

• carnivore

• herbivore

• decomposer

Tags

NGSS.MS-LS2-1

What do producers need, other than sun, for photosynthesis?

• Water and CO₂

• Glucose and O₂

• Love and happiness

• Carbohydrates and water

Tags

NGSS.MS-LS1-6

Organisms that make their own food

• Producer

• Consumer

• Decomposer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Organisms that obtain energy by feeding on other organisms

• Producer

• Consumer

• Decomposer

Tags

NGSS.5-LS2-1

NGSS.5-PS3-1

Organisms that break down wastes and dead organisms and return the raw materials to the environment

• Producer

• Consumer

• Decomposer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Consumers that eat only plants

• Carnivores

• Omnivores

• Herbivores

• Scavengers

Tags

NGSS.5-LS2-1

Consumers that eat only animals

• Carnivores

• Omnivores

• Herbivores

• Scavengers